JavaScript News

Node.js 26.9.0 (Current)

Functional programming jargon, mapped out

#​802 — September 15, 2026 Read on the Web JavaScript Weekly Functional Programming Jargon, Mapped and Explained — Currying, purity, functors, monads…? If FP terms ever go over...

Node.js 26.8.2 (Current)

Node.js 24.21.0 (LTS)

React 19.3

React 19.3 adds new features like View Transitions, Fragment Refs, browser(), Trusted Types, and more.

When 8 chunks weigh more than 355

#​801 — September 8, 2026 Read on the Web JavaScript Weekly How Turbopack Chunks Your JavaScript — Starting from the Network tab and working up, a look at chunking strategy and...

How to fit Minesweeper into 247 bytes

#​800 — September 1, 2026 Read on the Web Issue 800! I'm not doing anything to celebrate, but I know many of you have been here for years, so thanks for your continued support. Maybe I'll do somethi...

Node.js 26.8.1 (Current)

Node.js 26.8.0 (Current)

Node.js 24.20.0 (LTS)

Bun 1.4 is (finally) fresh out of the oven

#​799 — August 25, 2026 Read on the Web 🏖️ I'm back from an intense week of Disney vacationing with the family, so I feel more tired than before I left 😅… but it's time to catch up with all things...

Node.js Interactive 2026: A Recap

Node.js 26.7.0 (Current)

Node.js 26.6.0 (Current)

Node.js 24.19.0 (LTS)

Node.js 24.18.1 (LTS)

Node.js 26.5.1 (Current)

Node.js 22.23.2 (LTS)

Wednesday, July 29, 2026 Security Releases

Check out the New Node.js API Documentation Preview

Node.js 26.5.0 (Current)

Node.js 26.4.0 (Current)

Node.js 24.18.0 (LTS)

Node.js 22.23.1 (LTS)

Node.js 26.3.1 (Current)

The React Foundation: A New Home for React Hosted by the Linux Foundation

The React Foundation has officially launched, hosted by the Linux Foundation.

Denial of Service and Source Code Exposure in React Server Components

Security researchers have found and disclosed two additional vulnerabilities in React Server Components while attempting to exploit the patches in last week’s critical vulnerability. High vulnerabilit...

Critical Security Vulnerability in React Server Components

There is an unauthenticated remote code execution vulnerability in React Server Components. A fix has been published in versions 19.0.1, 19.1.2, and 19.2.1. We recommend upgrading immediately.

React Conf 2025 Recap

Last week we hosted React Conf 2025, in this post, we summarize the talks and announcements from the event...

React Compiler v1.0

We are releasing the compiler's first stable release today.

Introducing the React Foundation

Today, we're announcing our plans to create the React Foundation a new technical governance structure

React 19.2

React 19.2 adds new features like Activity, React Performance Tracks, useEffectEvent, and more.

React Labs: View Transitions, Activity, and more

In React Labs posts, we write about projects in active research and development. In this post, we're sharing two new experimental features that are ready to try today, and updates on other areas we're...

Sunsetting Create React App

Today, we’re deprecating Create React App for new apps, and encouraging existing apps to migrate to a framework, or to migrate to a build tool like Vite, Parcel, or RSBuild. We’re also providing docs...

React v19

React 19 is now available on npm! In this post, we'll give an overview of the new features in React 19, and how you can adopt them.

React Compiler Beta Release

At React Conf 2024, we announced the experimental release of React Compiler, a build-time tool that optimizes your React app through automatic memoization. In this post, we want to share what's next f...

React Conf 2024 Recap

Last week we hosted React Conf 2024, a two-day conference in Henderson, Nevada where 700+ attendees gathered in-person to discuss the latest in UI engineering. In this post, we'll summarize the talks...

React 19 Upgrade Guide

The improvements added to React 19 require some breaking changes, but we've worked to make the upgrade as smooth as possible and we don't expect the changes to impact most apps. In this post, we will...

React Labs: What We've Been Working On – February 2024

In React Labs posts, we write about projects in active research and development. We’ve made significant progress since our last update, and we’d like to share our progress.

React Canaries: Enabling Incremental Feature Rollout Outside Meta

We'd like to offer the React community an option to adopt individual new features as soon as their design is close to final, before they're released in a stable version--similar to how Meta has long u...

React Labs: What We've Been Working On – March 2023

In React Labs posts, we write about projects in active research and development. We've made significant progress on them since our last update, and we'd like to share what we learned.

Introducing react.dev

Today we are thrilled to launch react.dev, the new home for React and its documentation. In this post, we would like to give you a tour of the new site.

React Labs: What We've Been Working On – June 2022

React 18 was years in the making, and with it brought valuable lessons for the React team. Its release was the result of many years of research and exploring many paths. Some of those paths were succe...

React v18.0

React 18 is now available on npm! In our last post, we shared step-by-step instructions for upgrading your app to React 18. In this post, we'll give an overview of what's new in React 18, and what it...